Lactone bean curd packaging machine

Abstract

The utility model belongs to the technical field of bean curd production, and relates to a lactone bean curd packaging machine which comprises a heat sealing assembly, the heat sealing assembly comprises an upper bottom plate driven by a power device, a lower bottom plate is elastically connected to the lower portion of the upper bottom plate, a sealing head unit is connected to the lower portion of the lower bottom plate, and the sealing head unit is connected to the lower portion of the upper bottom plate. Each end sealing unit comprises a heating block and a copper pressing block connected to the bottom of the heating block, the copper pressing blocks are matched with single bean curd packaging box molds, and Teflon coatings are arranged at the bottoms of the copper pressing blocks. According to the lactone bean curd packaging machine, the heat sealing assembly is improved, so that the heat efficiency is higher, and the heat sealing quality is better.

Description

Technical Field

[0001] The utility model belongs to the technical field of tofu production and relates to a lactone tofu packaging machine. Background Art

[0002] Large-scale packaging of rennet tofu is typically performed on a rennet tofu packaging machine. This process involves multiple processes, including boxing, heat sealing, and film cutting. The heat sealing process typically involves heating a sealing head to a set temperature using a heating device. The head is then driven down to the tofu box mold. The sealing head and the mold work together to heat-seal the plastic film to the tofu box. To ensure adhesion between the sealing head and the plastic film, a high-temperature cloth is typically placed at the bottom of the head. However, the heat conduction efficiency of the high-temperature cloth is limited. Therefore, the head needs to be heated to a higher temperature, which wastes energy. Furthermore, the flexible high-temperature cloth has poor molding properties, which also affects the heat seal quality. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a lactone tofu packaging machine, which improves the heat sealing component, thereby achieving higher thermal efficiency and better heat sealing quality.

[0004] In order to solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions:

[0005] A lactone tofu packaging machine includes a heat sealing assembly, wherein the heat sealing assembly includes an upper base plate driven by a power device, a lower base plate is elastically connected below the upper base plate, a head unit is connected below the lower base plate, and the head unit includes a heating block and a copper pressing block connected to the bottom of the heating block, the copper pressing block is adapted to a single tofu packaging box mold, and the bottom of the copper pressing block is provided with a Teflon coating.

[0006] In the above-mentioned rennet tofu packaging machine, the tofu packaging machine conveys multiple tofu packaging box molds side by side, and the bottom of the heating block is connected to multiple copper pressing blocks arranged side by side, and the copper pressing blocks are arranged one-to-one corresponding to the tofu packaging box molds in the same row; correspondingly, the box feeding components, pouring components, etc. of the rennet tofu packaging machine need to be set to be consistent with the number of tofu packaging box molds in the same row.

[0007] In the above-mentioned rennet tofu packaging machine, two lower bottom plates distributed front and back are connected to the bottom of the upper bottom plate, and the bottom of the lower bottom plates are respectively connected to head units, the front head unit forms a preheating head unit, and the rear head unit forms a solid heat head unit; further, the heating temperature of the preheating head unit is lower than the heating temperature of the solid heat head unit.

[0008] In the above-mentioned rennet tofu packaging machine, the upper base plate and the lower base plate are spaced apart and connected by a number of upper bolts. The upper bolts are fixedly connected to the upper base plate and slidably connected to the lower base plate. The upper bolt sleeve is provided with a pre-tightened spring whose two ends respectively contact the upper base plate and the lower base plate; the lower base plate and the heating block are spaced apart and fixedly connected by a number of lower bolts.

[0009] In the above-mentioned rennet tofu packaging machine, a cutter assembly is provided on the front side of the upper base plate, and the cutter assembly includes a lifting cylinder, a cutter and an L-shaped connecting plate. Horizontal serrations are provided at the bottom of the cutter, and the top plane of the L-shaped connecting plate is connected to the piston rod of the lifting cylinder, and the front side plane is connected to the cutter.

[0010] In the above-mentioned rennet tofu packaging machine, an adjustment assembly is provided on the front side of the lower base plate, and the adjustment assembly includes an adjustment plate driven downward by a power device, and a positioning paddle is provided at the bottom of the adjustment plate for inserting into the gap between adjacent tofu packaging box molds.

[0011] In the above-mentioned rennet tofu packaging machine, the adjustment plate is connected to the bottom of the lifting bar, and the lifting bar is slidingly set on an adjustment base fixedly connected to the lower bottom plate. A pull rod driven by an adjustment cylinder is set on the adjustment base for lateral sliding. The bottom of the pull rod and the top of the lifting bar are provided with matching inclined surfaces. When the adjustment cylinder pulls the pull rod, the lifting bar is driven downward through the matching inclined surfaces; further, a reset spring is provided between the pull rod and the adjustment base, and between the lifting bar and the adjustment base.

[0012] In the above-mentioned rennet tofu packaging machine, the adjustment plate includes a mounting section along the vertical direction, a middle section bent backward, and a positioning paddle bent downward.

[0013] In the above-mentioned lactone tofu packaging machine, the adjustment component includes a sensor for monitoring the position of the tofu packaging box mold, and the sensor is electrically connected to the controller of the adjustment cylinder.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This utility model provides a lactone tofu packaging machine that improves the heat-sealing assembly. It utilizes a combination of a heating block, a copper pressure block, and a Teflon coating. Instead of using traditional high-temperature cloth, the heating block directly heats the copper pressure block, which has excellent thermal conductivity. The heated copper pressure block then directly acts on the plastic sealing film, while the Teflon coating prevents the plastic sealing film from sticking. This reduces electrical heating consumption and improves heat-sealing results.

[0016] 2. The present invention further provides a lactone tofu packaging machine that can package multiple tofus in the same row, which can further improve the production efficiency of lactone tofu packaging.

[0017] 3. The utility model further provides an adjustment component. During the transportation of the tofu packaging box mold, if the packaging film deviates, it can be readjusted to a predetermined position through the adjustment component. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 It is a three-dimensional diagram of the head unit of the utility model;

[0020] Figure 3 It is a three-dimensional diagram of the cutter assembly of the utility model;

[0021] Figure 4 It is a three-dimensional diagram of the adjustment component of the utility model;

[0022] Figure numerals: 1. Upper base plate; 2. Lower base plate; 3. Heating block; 4. Copper pressure block; 5. Upper bolt; 6. Preload spring; 7. Lower bolt; 8. Lifting cylinder; 9. Cutter; 10. L-shaped connecting plate; 11. Adjustment plate; 12. Lifting bar; 13. Adjustment base; 14. Adjustment cylinder; 15. Pull rod; 16. Matching inclined surface. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to specific embodiments of the present invention. Figure 1-4 :

[0024] A lactone tofu packaging machine includes a circulating conveyor belt driven by a power device, two groups of tofu packaging box molds are arranged side by side on the circulating conveyor belt, and a box feeding component, a grouting component, a defoaming component, a film placing component, a heat sealing component and a discharge component are arranged in sequence along the conveying direction, which can simultaneously package two groups of tofu. The structure and working mode of the box feeding component, grouting component, defoaming component, film placing component and discharge component of this embodiment, and the power device and driving structure of the heat sealing component are the same as those in the prior art and will not be repeated here.

[0025] Compare with Figure 1The heat sealing assembly includes an upper base plate 1 driven by a power device. A lower base plate 2 is elastically connected to the lower portion of the upper base plate 1. A sealing head unit is connected to the lower portion of the lower base plate 2. The sealing head unit includes a heating block 3 and a copper pressure block 4 connected to the bottom of the heating block 3. The copper pressure block 4 is adapted to fit a single tofu packaging mold, and the bottom of the copper pressure block 4 is provided with a Teflon coating. The heating block 3 is activated, heating the copper pressure block 4 at the bottom to a predetermined temperature. When the tofu packaging mold moves to the bottom of the sealing head unit, the power device drives the upper base plate 1 downward, and the lower base plate 2 and the sealing head unit connected to the lower base plate 2 also move downward. The copper pressure block 4 contacts the plastic sealing film, and the plastic sealing film is fixed to the tofu packaging box by heating. Since the bottom of the copper pressure block 4 is provided with a Teflon coating, the heated plastic sealing film will not adhere to the copper pressure block 4.

[0026] Compare with Figure 2 In order to meet the packaging requirements of two groups of tofu, the bottom of the heating block 3 is connected to two copper pressing blocks 4 arranged side by side, and the copper pressing blocks 4 are arranged in a one-to-one correspondence with the tofu packaging box molds in the same row.

[0027] In order to improve the heat sealing quality, this embodiment adopts a two-step heat sealing method: two lower bottom plates 2 distributed front and back are connected to the bottom of the upper bottom plate 1, and the bottom of the lower bottom plates 2 are respectively connected to head units, the front head unit forms a preheating head unit, and the rear head unit forms a solid heat head unit; further, the heating temperature of the preheating head unit is lower than the heating temperature of the solid heat head unit.

[0028] The specific connection structure of the heat sealing assembly of this embodiment further includes: the upper base plate 1 and the lower base plate 2 are spaced apart and connected by a plurality of upper bolts 5, the upper bolts 5 are fixedly connected to the upper base plate 1 and slidably connected to the lower base plate 2, and the upper bolts 5 are sleeved with a pre-tightening spring 6 whose two ends respectively contact the upper base plate 1 and the lower base plate 2, and the pre-tightening spring 6 provides a buffering effect during compression, so that the copper pressure block 4 can press the sealing film and prevent equipment damage; the lower base plate 2 and the heating block 3 are spaced apart and fixedly connected by a plurality of lower bolts 7, and the heating block 3 arranged at intervals prevents heat from being transferred to the lower base plate 2, causing heat waste and equipment damage.

[0029] Compare with Figure 3 , this embodiment further provides a device for cutting the sealing film:

[0030] A cutter assembly is provided on the front side of the upper base plate 1, which includes a lifting cylinder 8, a cutter 9 and an L-shaped connecting plate 10. The bottom of the cutter 9 is provided with horizontal serrations. The top plane of the L-shaped connecting plate 10 is connected to the piston rod of the lifting cylinder 8, and the front plane is connected to the cutter 9; the lifting cylinder 8 drives the cutter 9 to move downward to cut the sealing film.

[0031] Compare with Figure 4 , this embodiment further provides an adjustment component for the tofu packaging box mold.

[0032] An adjustment assembly is provided on the front side of the lower base plate 2. The adjustment assembly includes an adjustment plate 11 driven downward by a power device. The bottom of the adjustment plate 11 is provided with a positioning paddle that is inserted into the gap between adjacent tofu packaging box molds. When the packaging film deviates, the packaging film cannot accurately match the tofu packaging box, thereby affecting the quality of the film sealing. When the positioning paddle is inserted into the gap between the tofu packaging box mold, the packaging film can be pulled, thereby positioning the packaging film and adjusting the distance between the tofu packaging box and the packaging film, so that the tofu packaging box is realigned with the position of the packaging film. Of course, the adjustment assembly of this embodiment only adjusts the backward deviation. When the packaging film deviates forward, other means are required for adjustment. For example: the positioning black spot on the packaging film is detected by a packaging film sensing switch. When the packaging film deviates forward, the brake device of the film winding device is activated, and the cylinder is used to pull the brake device to generate friction, thereby reducing the rotation speed of the rotating shaft, causing the film to shift backward. After reaching the standard position, it resumes normal operation.

[0033] Furthermore, the adjustment plate 11 is connected to the bottom of the lifting bar 12, and the lifting bar 12 is slidably set on an adjustment base 13 fixed to the lower base plate 2. A pull rod 15 driven by an adjustment cylinder 14 is provided on the adjustment base 13 for transverse sliding. The bottom of the pull rod 15 and the top of the lifting bar 12 are provided with a matching inclined surface 16. When the adjustment cylinder 14 pulls the pull rod 15, the lifting bar 12 is driven downward through the matching inclined surface 16; further, a return spring is provided between the pull rod 15 and the adjustment base 13, and between the lifting bar 12 and the adjustment base 13.

[0034] The adjustment plate 11 includes a vertical mounting section, a rearward-bent middle section, and a downward-bent positioning paddle; the mounting section is used to fix it to the lifting bar, and the longitudinal dimension of the middle section ensures that the paddle can align with the gap of the tofu packaging box mold.

[0035] The above-mentioned adjustment component includes a sensor for monitoring the position of the tofu packaging box mold. The sensor is electrically connected to the controller of the adjustment cylinder. When the sensor detects that the tofu packaging box mold is deviated, the adjustment component is activated to make adjustments.

[0036] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A lactone tofu packaging machine, comprising a heat sealing assembly, wherein the heat sealing assembly comprises an upper base plate (1) driven by a power device, and a lower base plate (2) is elastically connected to the lower side of the upper base plate (1), characterized in that: A sealing unit is connected below the lower base plate (2), and the sealing unit comprises a heating block (3) and a copper pressing block (4) connected to the bottom of the heating block (3). The copper pressing block (4) is adapted to a single tofu packaging box mold, and a Teflon coating is provided on the bottom of the copper pressing block (4).

2. A lactone tofu packaging machine according to claim 1, characterized in that: The tofu packaging machine conveys a plurality of tofu packaging box molds in parallel, and the bottom of the heating block (3) is connected to a plurality of copper pressing blocks (4) arranged in parallel, and the copper pressing blocks (4) are arranged in a one-to-one correspondence with the tofu packaging box molds in the same row.

3. A lactone tofu packaging machine according to claim 2, characterized in that: Two lower bottom plates (2) distributed front and back are connected below the upper bottom plate (1), and head units are respectively connected below the lower bottom plates (2), wherein the head unit on the front side forms a preheating head unit, and the head unit on the rear side forms a solid heat head unit.

4. The lactone tofu packaging machine according to claim 1, characterized in that: The upper base plate (1) and the lower base plate (2) are spaced apart and connected by a plurality of upper bolts (5); the upper bolts (5) are fixedly connected to the upper base plate (1) and slidably connected to the lower base plate (2); the upper bolts (5) are sleeved with a preload spring (6) with two ends respectively in contact with the upper base plate (1) and the lower base plate (2); the lower base plate (2) and the heating block (3) are spaced apart and fixedly connected by a plurality of lower bolts (7).

5. The lactone tofu packaging machine according to claim 1, characterized in that: A cutter assembly is provided on the front side of the upper base plate (1), and the cutter assembly comprises a lifting cylinder (8), a cutter (9) and an L-shaped connecting plate (10). The bottom of the cutter (9) is provided with horizontal saw teeth. The top plane of the L-shaped connecting plate (10) is connected to the piston rod of the lifting cylinder (8), and the front side plane is connected to the cutter (9).

6. The lactone tofu packaging machine according to claim 1, characterized in that: An adjustment assembly is provided on the front side of the lower base plate (2), and the adjustment assembly comprises an adjustment plate (11) driven downward by a power device, and a positioning paddle is provided at the bottom of the adjustment plate (11) for inserting into the gap between adjacent tofu packaging box molds.

7. The lactone tofu packaging machine according to claim 6, characterized in that: The adjustment plate (11) is connected to the bottom of the lifting bar (12), and the lifting bar (12) is slidingly arranged on an adjustment base (13) fixedly connected to the lower base plate (2). A pull rod (15) driven by an adjustment cylinder (14) is arranged on the adjustment base (13) for sliding in the transverse direction. The bottom of the pull rod (15) and the top of the lifting bar (12) are provided with a matching inclined surface (16). When the adjustment cylinder (14) pulls the pull rod (15), the lifting bar (12) is driven to move downward through the matching inclined surface (16).

8. The lactone tofu packaging machine according to claim 6, characterized in that: The adjustment assembly includes a sensor for monitoring the position of the tofu packaging box mold.

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